All GRE Math Resources
Example Questions
Example Question #1 :How To Divide Negative Numbers
Find the value of.
To solve for, divide each side of the equation by -2.
is the same as
which is POSITIVE
Example Question #1 :How To Divide Negative Numbers
What is?
45
A negative number divided by a negative number always results in a positive number.divided byequals. Since the answer is positive, the answer cannot beor any other negative number.
Example Question #11 :Negative Numbers
Solve for:
Begin by isolating your variable.
Subtractfrom both sides:
, or
Next, subtractfrom both sides:
, or
Then, divide both sides by:
Recall that division of a negative by a negative gives you a positive, therefore:
or
Example Question #3 :Negative Numbers
Solve for:
To solve this equation, you need to isolate the variable on one side. We can accomplish this by dividing byon both sides:
只要你把,如果是迹象the same (i.e. two positive, or two negative), you'll get a positive result. If the signs are opposites (i.e. one positive, one negative) then you get a negative.
Both of the numbers here are negative, so we will have a positive result:
Example Question #2 :Negative Numbers
Solve for:
To solve, you need to isolate the variable. We first subtractthen divide by:
When dividing, if the signs of the numbers are the same (i.e. both positive, or both negative), you yield a positive result. If the signs of the numbers are opposites (i.e. one of each), then you yield a negative result.
Therefore: